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30465771400 = 23521716095569
BaseRepresentation
bin11100010111111001…
…101100011110001000
32220122012201112121201
4130113321230132020
5444343214141100
621555031113544
72125653532651
oct342771543610
986565645551
1030465771400
1111a14151a79
125aa2b128b4
132b46a2458c
141690250528
15bd498036a
hex717e6c788

30465771400 has 96 divisors (see below), whose sum is σ = 75059649000. Its totient is φ = 11460280320.

The previous prime is 30465771379. The next prime is 30465771403. The reversal of 30465771400 is 417756403.

It can be written as a sum of positive squares in 12 ways, for example, as 8143618564 + 22322152836 = 90242^2 + 149406^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30465771400.

It is not an unprimeable number, because it can be changed into a prime (30465771403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5467816 + ... + 5473384.

Almost surely, 230465771400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30465771400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37529824500).

30465771400 is an abundant number, since it is smaller than the sum of its proper divisors (44593877600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30465771400 is a wasteful number, since it uses less digits than its factorization.

30465771400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7211 (or 7202 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 30465771400 in words is "thirty billion, four hundred sixty-five million, seven hundred seventy-one thousand, four hundred".

Divisors: 1 2 4 5 8 10 17 20 25 34 40 50 68 85 100 136 170 200 340 425 680 850 1609 1700 3218 3400 5569 6436 8045 11138 12872 16090 22276 27353 27845 32180 40225 44552 54706 55690 64360 80450 94673 109412 111380 136765 139225 160900 189346 218824 222760 273530 278450 321800 378692 473365 547060 556900 683825 757384 946730 1094120 1113800 1367650 1893460 2366825 2735300 3786920 4733650 5470600 8960521 9467300 17921042 18934600 35842084 44802605 71684168 89605210 152328857 179210420 224013025 304657714 358420840 448026050 609315428 761644285 896052100 1218630856 1523288570 1792104200 3046577140 3808221425 6093154280 7616442850 15232885700 30465771400